MTV021 ETC-unknow, MTV021 Datasheet - Page 13

• Manufacturer Part Number: MTV021
• Description: Enhanced Super On-screen Display
• Manufacturer: ETC-unknow

WW31, WW30 - Determines the shadow width of the window 3 when WSHD bit of th window 3 is enabled.
WW21, WW20 - Determines the shadow width of the window 2 when WSHD bit of th window 2 is enabled.
WW11, WW10 - Determines the shadow width of the window 1 when WSHD bit of th window 1 is enabled.
WH41, WH40 - Determines the shadow height of the window 4 when WSHD bit of th window 4 is enabled.
WH31, WH30 - Determines the shadow height of the window 3 when WSHD bit of th window 3 is enabled.
WH21, WH20 - Determines the shadow height of the window 2 when WSHD bit of th window 2 is enabled.
WH11, WH10 - Determines the shadow height of the window 1 when WSHD bit of th window 1 is enabled.
3.11 Color encoder
The decoder generates the video output to ROUT, GOUT and BOUT by integrating window color, border
blackedge, luminance output and color selection output (R, G, B) to form the desired video outputs.
3.12 PWM D/A converter
There are 8 open-drain PWM D/A outputs (PWM0 to PWM7). These PWM D/A converter outputs pulse width
are programmable by writing data to Column 19 to 26 registers of Row 15 with 8-bit resolution to control the
pulse width duration from 0/256 to 255/256. And the sampling rate is selected by (VCO1, VCO0) shown as
table 5. In applications, all open-drain output pins should be pulled-up by external resistors to supply voltage
(5V to 9V) for desired output range.
Column 22
(WH41, WH40)
Shadow Height
TABLE 7. Shadow Height Setting
(unit in Line)
Bordering
FIGURE 6. Character Bordering and Shadowing and Shadowing on Window
WH41
Please refer to the Table 7 for more details.
MYSON
TECHNOLOGY
B7
(0, 0)
2
WH40
Shadowing
b6
(0, 1)
4
WH31
b5
(1, 0)
6
N Horizontal lines
WH30
b4
(1, 1)
13/17
8
M Pixels
WH21
b3
WH20
WINDOW AREA
b2
WH11
b1
MTV021 Revision 5.0 6/29/1999
WH10
b0
MTV021
M Pixels
Note:
M and N are defined
by the registers of
row 15, column 21
and 22.
N Horizontal lines